AT&T Inc EGARCH Volatility Analysis
Volatility prediction for Monday, May 18th, 2026
1 Day
28.17%
increased by 2.03%
1 Week
28.22%
increased by 2.08%
1 Month
28.39%
increased by 2.25%
Analysis last updated: Friday, May 15, 2026 at 10:49 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0175 | 16.41 | |
| 0.1327 | 40.71 | |
| 0.9863 | 1,467.64 | |
| -0.0302 | -10.00 |
Estimation Period:
Jan 2, 1990 to May 15, 2026
Jan 2, 1990 to May 15, 2026
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